ExperiencedBlockChain Back-End (Java - NodeJS)

Job Description

[SW Development]

  • Participate in web application development in the company's blockchain fields.
  • Switching to Linux OS and updating the open source-based blockchain platform version
  • Discuss details during interview



Blockchain & dApp:

  • Have experience using Solidity
  • Have experience coding smart contracts as required, running on EVM (BNB, ETH, ...)
  • Proficient in tools, frameworks, libraries such as: metamask, trust, Remix, Truffle, OpenZeppelin, Web3.js, Web3j, Ethers.js, Eth.js,
  • The Graph, Bscscan API, IPFS, Storj,...


  • Minimum 3 years of experience in NodeJS or java programming
  • With nodejs, understand Nodejs module (commonjs/umd/webpack module), node package manager (npm/yarn), Have experience using express fw
  • With java, have a clear understanding of fws like spring fw (spring boot, spring AOP....)
  • Understand and proficiently use databases (SQL/NoSQL) such as PostgreSQL, MongoDB, MySQL
  • Experience working with Queue (RabbitMQ, Kafka) and In-memory cache (Redis)
  • Experience working with Docker
  • Experience using tools such as Git, Jira
  • Communicate in English at an average level (TOEIC above 550 and similar certificates or confidently communicate in English)
  • Be proactive and responsible at work


  • Experience with Hyperledger Fabric or proficient in Golang development
  • Can go on short-term business trips to Korea when necessary


  • Attractive salary and bonus will be discussed after going through CV & Interview
  • Review capacity annually and adjust salary increases according to work performance.
  • Korean language certificate bonus (TOPIK)
  • Health care: Premium health insurance, Annual health check-up
  • Young working environment
  • Good career development opportunities with interesting and challenging projects.
  • English, Korean, technical, soft skills training courses.
  • Opportunity to learn special courses from LG CNS, new technology and security.
  • Gifts on holidays (April 30th - May 1st, September 2nd, Tet, etc.)
  • Outdoor activities with company support: sports clubs, team building, happy hour parties, birthdays, travel, employee and family events, etc.
  • Working hours: 8 hours from Monday - Friday (8:00 - 12:00 - 13:00 - 17:00)


  • 15th Floor, Keangnam Landmark 72, Me Tri, Nam Tu Liem, Hanoi

How to apply

  1. Please send your application to the following e-mail. ▶recruit_VN@lgcns.com
    * Postal or in-person application is not allowed
  • Attach CV in English
  • The Agreement to the Collection, Use and Transfer of Personal Data (Reference)

Hiring Process

  1. Book an Interview Schedule with HR manager.
  2. 1st interview with VN Senior Leaders (Online/offline meeting room, use Vietnamese to answer)
  3. 2nd Interview with Kr Senior PM (Online meeting room, use English and Vietnamese to answer) *
  4. If passed, negotiate salary and bonus.
  5. Confirm onboarding Date.


  • All inquiries about the hiring process can be made through ▶ recruit_VN@lgcns.com

Copyright © LG CNS. All Rights Reserved.

Copyright © LG CNS. All Rights Reserved.